Pipes and tubular conduits – Plural duct
Reexamination Certificate
2011-01-04
2011-01-04
Brinson, Patrick F (Department: 3754)
Pipes and tubular conduits
Plural duct
C138S116000, C138S144000, C366S167100
Reexamination Certificate
active
07861745
ABSTRACT:
A flexible hose construction adapted for separately conveying two or more fluids therethrough. The construction includes a core tube, a second tube helically disposed about the core tube, and a tubular jacket surrounding the core tube. The second tube may be substantially concentric with the core tube. The tubular jacket may be substantially cylindrical so as to have a substantially smooth outer surface.
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PCT International Search Report and Written Opinion of the International Searching Authority mailed May 13, 2008 in corresponding Application No. PCT/US2007/079494.
Adamson Wallace
Boone Kelley J.
Miller Victor J.
Wojciechowski Kevin J.
Brinson Patrick F
Parker-Hannifin Corporation
Renner , Otto, Boisselle & Sklar, LLP
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